Before achieving success, you have to go through many failures including stupid mistakes, try to put your case into the problem, are you willing to say unprofitable transactions with people or you? trying to hide it. When you're an expert, you'll get so many supporters and followers, how can you bring out such negative sides? No one is a perfect trader, everyone has a mistake and everyone wants to hide it.
For sure if we are earning from something so we will make mistakes and we will face losing as no one comes as a trader by birth but people do learn from mistakes and by making experiences so never be afraid of your mistakes just be brave and avoid mistakes if you got lose just take it an experience and get lesson from it. Better Share your loss with others and also tell them the reason so they will learn from it.